<template>
<el-container class="home-container">
  <!-- 头部 -->
  <el-header>
    <div>
      <img src="../assets/heima.png" alt="">
      <span>电商后台管理系统</span>
    </div>
    <el-button type="info" @click="logout">退出</el-button>
  </el-header>
  <!-- 主题区 -->
  <el-container>
    <!-- 侧边栏 -->
    <el-aside :width="iscollapase ? '64px': '200px'">
      <div class="toggle-button" @click="toggleCollapse">|||</div>
      <el-menu background-color="#333744" text-color="#fff" active-text-color="#409Eff" :unique-opened="true" :collapse="iscollapase"
      :collapse-transition="false"
      :router="true"
      :default-active="activePath"
      >
        <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
          <template slot="title">
            <i :class="icons0bj[item.id]" class="icon"></i>
            <span>{{item.authName}}</span>
          </template>
          <el-menu-item v-for="subIttem in item.children" :key="subIttem.id" :index="'/'+subIttem.path" @click="saveNavState('/'+subIttem.path)">
            <template slot="title">
              <i class="el-icon-menu"></i>
              <span>{{subIttem.authName}}</span>
            </template>
          </el-menu-item>
        </el-submenu>
      </el-menu>
    </el-aside>
    <!-- 右侧 -->
    <el-main>
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
export default {
  name: 'Home',
  data() {
    return {
      menulist: [],
      icons0bj: {
        '125': 'iconfont icon-user',
        '103': 'iconfont icon-tijikongjian',
        '101': 'iconfont icon-shangpin ',
        '102': 'iconfont icon-danju ',
        '145': 'iconfont icon-baobiao'
      },
      iscollapase:false,
      activePath:''

    }
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList() {
      const {
        data: res
      } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error('获取消息失败')
      this.menulist = res.data
    },
    // 点击按钮折叠
    toggleCollapse() {
      this.iscollapase=!this.iscollapase
    },
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath)
    }
  },
  created() {
    this.getMenuList()
    this.activePath= window.sessionStorage.getItem('activePath')
  }
}
</script>

<style lang="less" scoped>
.el-header {
  background-color: #373D41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
  font-size: 20px;

  div {
    display: flex;
    align-items: center;

    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;

  .el-menu {
    border-right: none;
  }

}

.el-main {
  background-color: #EAEDF1;
}

.el-container {
  height: 100%;
}

.icon {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
